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