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