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