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