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