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