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)(12,16)(13,15)(17,18,22,26)(19,23,29,30)(20,24,31,27)(21,25,32,28)(2,6)(7,8)(9,11,13,12)(10,14,15,16)(17,19,22,29)(18,23,26,30)(20,28,31,25)(21,27,32,24)(1,3,5,4)(2,7,6,8)(10,15)(14,16)(19,27)(20,23)(21,32)(24,29)(25,28)(30,31)(9,12,13,11)(10,16,15,14)(17,20,22,31)(18,24,26,27)(19,28,29,25)(21,30,32,23)(1,4,5,3)(2,8,6,7)(19,24)(20,30)(21,32)(23,31)(25,28)(27,29)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.