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