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