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