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