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