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