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