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