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