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