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