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