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