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