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