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