No uniform realisation is possible.

Incidence matrix according to Dynkin symbol

β3o4β3o

both( . . . . ) | 288 |   4   2   2   4 |  1   2   8   6   4 |  2  2  1   6
----------------+-----+-----------------+--------------------+-------------
both( s 2 s . ) |   2 | 576   *   *   * |  0   0   2   2   0 |  1  1  0   2
both( . o4s . ) |   2 |   * 288   *   * |  0   0   2   0   2 |  1  0  1   2
sefa( β3o . . ) |   2 |   *   * 288   * |  1   0   2   0   0 |  2  0  0   1
sefa( . . β3o ) |   2 |   *   *   * 576 |  0   1   0   1   1 |  0  1  1   1
----------------+-----+-----------------+--------------------+-------------
      β3o . .   ♦   3 |   0   0   3   0 | 96   *   *   *   * |  2  0  0   0
      . . β3o   ♦   3 |   0   0   0   3 |  * 192   *   *   * |  0  1  1   0
sefa( β3o4β . ) |   4 |   2   1   1   0 |  *   * 576   *   * |  1  0  0   1
sefa( β 2 β3o ) |   3 |   2   0   0   1 |  *   *   * 576   * |  0  1  0   1
sefa( . o4β3o ) |   4 |   0   2   0   2 |  *   *   *   * 288 |  0  0  1   1
----------------+-----+-----------------+--------------------+-------------
      β3o4β .   ♦  24 |  24  12  24   0 |  8   0  24   0   0 | 24  *  *   *
      β 2 β3o   ♦   6 |   6   0   0   6 |  0   2   0   6   0 |  * 96  *   *
      . o4β3o   ♦  12 |   0  12   0  24 |  0   8   0   0  12 |  *  * 24   *
sefa( β3o4β3o ) ♦   6 |   4   2   1   2 |  0   0   2   2   1 |  *  *  * 288

starting figure: x3o4x3o