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