One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,6)(3,4,7,8)(9,10,12,14)(11,15,16,13)(17,18,23,22)(19,27,29,24)(20,30,31,25)(21,32,28,26)(9,11,12,16)(10,13,14,15)(17,19,23,29)(18,24,22,27)(20,28,31,21)(25,26,30,32)(2,6)(3,7)(17,20,23,31)(18,25,22,30)(19,21,29,28)(24,32,27,26)(1,3)(2,4)(5,7)(6,8)(17,20)(18,25)(19,28)(21,29)(22,30)(23,31)(24,26)(27,32) involution — undirected(1,4)(2,3)(5,8)(6,7)(17,21,23,28)(18,26,22,32)(19,20,29,31)(24,30,27,25)(17,22,23,18)(19,27,29,24)(20,30,31,25)(21,26,28,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.