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