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