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