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