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