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