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