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