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