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