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)(17,18,22,20,23,25,21,32)(19,26,30,28,27,31,29,24)(10,13)(11,15)(17,19,23,27)(18,24,25,28)(20,31,32,26)(21,30,22,29)(1,3,5,4)(2,6,7,8)(9,10)(11,14)(12,13)(15,16)(18,25)(19,27)(20,32)(29,30)(10,13)(14,16)(17,20,22,25,23,32,21,18)(19,28,30,31,27,24,29,26)(1,4,5,3)(2,6,7,8)(9,11,12,15)(10,14,13,16)(17,21,23,22)(18,20,25,32)(19,29,27,30)(24,26,28,31)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.