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