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