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