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