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