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