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