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