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