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