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