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