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