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