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