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