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