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