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