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