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