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