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)(19,23)(20,25)(21,29)(22,24)(26,30)(27,32)(28,31)(9,11,12,16)(10,13,14,15)(17,19,22,20)(18,23,24,25)(21,28,30,27)(26,32,29,31)(2,6)(3,7)(18,24)(19,20)(26,29)(27,28) involution — undirected(1,3)(2,4)(5,7)(6,8)(17,20,22,19)(18,25,24,23)(21,27,30,28)(26,31,29,32)(1,4)(2,3)(5,8)(6,7)(17,21)(18,26)(19,27)(20,28)(22,30)(23,31)(24,29)(25,32) involution — undirected(17,18)(19,23)(20,25)(21,26)(22,24)(27,31)(28,32)(29,30) involution — undirectedA 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.