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