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