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