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