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