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