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