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