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