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