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