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