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