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