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