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