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)(11,13)(12,14)(15,16)(17,18,23,20,22,25,19,26)(21,29,30,32,31,24,27,28)(2,5)(3,7)(9,11,12,15)(10,13,14,16)(17,19,22,23)(18,20,25,26)(21,30,31,27)(24,32,29,28)(10,14)(11,15)(17,20,23,25,22,26,19,18)(21,28,30,29,31,32,27,24)(1,3,4,7)(2,6,5,8)(10,14)(13,16)(17,21,22,31)(18,24,25,29)(19,27,23,30)(20,28,26,32)(2,5)(6,8)(21,31)(24,29)(27,30)(28,32) 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.