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