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