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