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