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