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