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