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