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