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