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