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