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