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