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