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