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