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)(17,18,22,26,23,27,21,31)(19,24,28,32,29,25,20,30)(1,2,3,7,6,9,5,14)(4,12,10,16,11,15,13,8)(17,19,22,28,23,29,21,20)(18,24,26,32,27,25,31,30)(1,3,6,5)(2,7,9,14)(4,10,11,13)(8,12,16,15)(17,20,21,29,23,28,22,19)(18,25,26,30,27,24,31,32)(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.