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