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