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