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