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