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