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