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