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