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