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