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