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