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