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