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