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