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