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