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