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)(17,18,21,24,23,28,22,27)(19,20,30,32,26,31,29,25)(1,2,4,7,5,8,12,9)(3,11,13,16,14,6,15,10)(18,24,28,27)(19,29,26,30)(20,31)(25,32)(1,2)(3,6)(4,7)(5,8)(9,12)(10,13)(11,14)(15,16)(17,19,23,26)(18,25,28,32)(20,24,31,27)(21,29,22,30)(1,3,12,15,5,14,4,13)(2,6,9,16,8,11,7,10)(17,20,21,32,23,31,22,25)(18,26,27,30,28,19,24,29)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.