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