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