One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,7)(3,4,8,6)(10,14)(15,16)(17,18)(19,22)(20,24)(21,25)(23,26)(27,29)(28,31)(30,32)(9,10,13,14)(11,15,12,16)(17,19)(18,22)(20,27)(21,26)(23,25)(24,29)(28,32)(30,31)(1,3,5,8)(2,6,7,4)(9,11,13,12)(10,15,14,16)(19,26)(20,28)(22,23)(24,31)(1,3)(2,4)(5,8)(6,7)(17,19)(18,23)(20,27)(21,26)(22,25)(24,30)(28,32)(29,31) involution — undirected(1,4)(2,3)(5,6)(7,8)(9,12,13,11)(10,16,14,15)(17,20)(18,24)(19,27)(21,28)(22,29)(23,30)(25,31)(26,32)(17,18)(19,23)(20,24)(21,25)(22,26)(27,30)(28,31)(29,32) 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.