No uniform realisation is possible.

Incidence matrix according to Dynkin symbol

x3o4β3o

both( . . . . ) | 288 |   2   2   4 |  1   2   4   4   4 |  2  2  1  4
----------------+-----+-------------+--------------------+------------
both( x . . . ) |   2 | 288   *   * |  1   0   2   2   0 |  2  1  0  2
both( . o4s . ) |   2 |   * 288   * |  0   0   2   0   2 |  1  0  1  2
sefa( . . β3o ) |   2 |   *   * 576 |  0   1   0   1   1 |  0  1  1  1
----------------+-----+-------------+--------------------+------------
both( x3o . . ) |   3 |   3   0   0 | 96   *   *   *   * |  2  0  0  0
      . . β3o   ♦   3 |   0   0   3 |  * 192   *   *   * |  0  1  1  0
sefa( x3o4s . ) |   6 |   3   3   0 |  *   * 192   *   * |  1  0  0  1
sefa( x . β3o ) |   4 |   2   0   2 |  *   *   * 288   * |  0  1  0  1
sefa( . o4β3o ) |   4 |   0   2   2 |  *   *   *   * 288 |  0  0  1  1
----------------+-----+-------------+--------------------+------------
both( x3o4s . ) ♦  12 |  12   6   0 |  4   0   4   0   0 | 48  *  *  *
      x . β3o   ♦   6 |   3   0   6 |  0   2   0   3   0 |  * 96  *  *
      . o4β3o   ♦  12 |   0  12  24 |  0   8   0   0  12 |  *  * 24  *
sefa( x3o4β3o ) ♦  12 |   6   6   6 |  0   0   2   3   3 |  *  *  * 96

starting figure: x3o4x3o