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