Graph 1, order 8.
8 8
0 4  0 5  1 4  1 5  2 6  2 7  3 6  3 7

Graph 2, order 8.
8 8
0 4  0 5  1 4  1 6  2 5  2 7  3 6  3 7

Graph 3, order 8.
8 8
0 3  0 5  1 4  1 6  2 6  2 7  3 5  4 7