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