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