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