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