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