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