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