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