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