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