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)(11,16)(12,13)(14,15)(17,18)(19,22)(20,21)(23,24)(25,26,30,29)(27,32,28,31)(2,3)(4,8)(9,11)(10,13)(12,14)(15,16)(18,20)(19,23)(25,27,30,28)(26,31,29,32)(2,3)(6,7)(10,15)(11,12)(17,18,21,20)(19,24,23,22)(25,26,30,29)(27,31,28,32)(1,3,5,2)(4,7,8,6)(9,12,14,11)(10,16,15,13)(17,19,21,23)(18,22,20,24)(25,28,30,27)(26,31,29,32)(1,4,5,8)(2,6,3,7)(9,13,14,16)(10,11,15,12)(17,20,21,18)(19,24,23,22)(25,29,30,26)(27,31,28,32)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.