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