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