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