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