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