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