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