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