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