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