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