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