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