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