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