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