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)(17,18,23,19,21,25,22,26)(20,27,31,24,29,32,30,28)(2,8,11,10)(3,12,13,16)(4,14)(9,15)(17,19,23,25,21,26,22,18)(20,28,31,27,29,24,30,32)(1,3,7,13)(2,9,11,15)(4,10,14,8)(5,12,6,16)(17,20,21,29)(18,24,25,28)(19,27,26,32)(22,31,23,30)(1,4,5,9,7,14,6,15)(2,3,10,12,11,13,8,16)(18,25)(19,26)(24,28)(27,32)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.