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