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