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)(17,18,23,30,21,20,22,25)(19,26,31,24,28,32,29,27)(1,3,5,8)(2,6,4,7)(9,11,12,15)(10,13,14,16)(18,20)(24,27)(25,30)(26,32)(1,2,5,4)(3,6,8,7)(11,15)(13,16)(17,19,21,28)(18,24,20,27)(22,31,23,29)(25,32,30,26)(1,4,5,2)(3,6,8,7)(17,20)(18,21)(19,27)(22,30)(23,25)(24,28)(26,31)(29,32)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.