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