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