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