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