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