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