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