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