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