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