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