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