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