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