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)(17,18,21,22)(19,23,26,27)(20,24,29,30)(25,31,28,32)(1,3,5,4)(2,6,8,7)(9,11)(10,13)(12,15)(14,16)(18,22)(20,24)(23,27)(25,31)(28,32)(29,30)(1,3,5,4)(2,7,8,6)(10,14)(11,15)(17,19,21,26)(18,23,22,27)(20,28,29,25)(24,32,30,31)(1,4,5,3)(2,6,8,7)(10,14)(13,16)(17,20)(18,24)(19,25)(21,29)(22,30)(23,31)(26,28)(27,32)(2,8)(6,7)(19,26)(23,27)(25,28)(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.