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