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