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