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