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