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