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