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