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