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