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