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)(11,14)(12,13)(15,16)(17,18,21,26,22,27,29,24)(19,23,30,31,28,32,20,25)(1,3)(2,5)(4,8)(6,7)(10,13)(11,15)(17,19)(18,23)(20,29)(21,30)(22,28)(24,25)(26,31)(27,32) involution — undirected(9,11,12,15)(10,14,13,16)(18,24)(19,28)(21,29)(23,31)(25,32)(26,27)(2,6)(5,7)(10,13)(14,16)(17,20,22,30)(18,25,27,31)(19,29,28,21)(23,24,32,26)(3,8)(5,7)(19,28)(20,30)(23,32)(25,31) 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.