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