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