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