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