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