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