test.dot

digraph G {
    subgraph cluster_0 {
    style=filled;
    color="#bbdefb";
    node [style=filled,color="#2196f3",fontcolor=white];
    1 [ label = 1 ]
    2 [ label = 2 ]
    3 [ label = 3 ]
    5 [ label = 4 ]
    7 [ label = 5 ]
    40 [ label = 7 ]
    41 [ label = 8 ]
    42 [ label = 9 ]
    43 [ label = 10 ]
    68 [ label = 17 ]
    69 [ label = 18 ]
    82 [ label = 22 ]

    1 -> 40 [ ]
    2 -> 41 [ ]
    3 -> 41 [ ]
    5 -> 42 [ ]
    7 -> 43 [ ]
    40 -> 68 [ ]
    41 -> 68 [ ]
    42 -> 69 [ ]
    43 -> 69 [ ]
    68 -> 82 [ ]
    69 -> 82 [ ]

    label = "Winners Bracket";
  }

  subgraph cluster_1 {
    style=filled;
    color="#ffcdd2";
    node [ style = filled, color = "#f44336", fontcolor = white ];
    31 [ label = 6 ]
    54 [ label = 14 ]
    55 [ label = 13 ]
    58 [ label = 12 ]
    59 [ label = 11 ]
    65 [ label = 16 ]
    67 [ label = 15 ]
    72 [ label = 19 ]
    73 [ label = 20 ]
    79 [ label = 21 ]
    83 [ label = 23 ]

    31 -> 55 [ ]
    54 -> 65 [ ]
    55 -> 65 [ ]
    58 -> 67 [ ]
    59 -> 67 [ ]
    65 -> 72 [ ]
    67 -> 73 [ ]
    72 -> 79 [ ]
    73 -> 79 [ ]
    79 -> 83 [ ]

    2 -> 31 [ arrowhead = empty, style = dashed ]
    3 -> 31 [ arrowhead = empty, style = dashed ]
    43 -> 54 [ arrowhead = empty, style = dashed ]
    1 -> 54 [ arrowhead = empty, style = dashed ]
    42 -> 55 [ arrowhead = empty, style = dashed ]
    41 -> 58 [ arrowhead = empty, style = dashed ]
    5 -> 58 [ arrowhead = empty, style = dashed ]
    40 -> 59 [ arrowhead = empty, style = dashed ]
    7 -> 59 [ arrowhead = empty, style = dashed ]
    68 -> 72 [ arrowhead = empty, style = dashed ]
    69 -> 73 [ arrowhead = empty, style = dashed ]
    82 -> 83 [ arrowhead = empty, style = dashed ]

    label = "Losers Bracket";
  }

    87 [ label = 24, shape = Mdiamond, style = filled, color = "#673ab7", fontcolor = white ]
    82 -> 87 [ ]
    83 -> 87 [ ]
}