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