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