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