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