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