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