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