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