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