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