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