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