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