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