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