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)(12,14)(13,15)(17,18,21,24)(19,20,23,22)(25,26)(27,30)(28,32)(29,31)(1,2)(3,7)(4,6)(5,8)(9,11)(10,15)(12,16)(13,14)(25,26,29,31)(27,30,32,28)(1,2)(3,5)(4,6)(7,8)(9,10,14,12)(11,16,13,15)(17,19,21,23)(18,22,24,20)(25,27,29,32)(26,30,31,28)(1,2)(3,7)(4,6)(5,8)(9,12,14,10)(11,16,13,15)(17,18)(19,22)(20,23)(21,24)(25,28)(26,27)(29,30)(31,32)(1,3,4,8)(2,5,6,7)(9,13,14,11)(10,15,12,16)(17,20,21,22)(18,23,24,19)(25,26)(27,30)(28,32)(29,31)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.