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