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