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