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