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