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