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