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