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