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