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