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