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