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