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