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