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