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