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