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