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