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