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