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