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