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