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