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