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