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