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