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