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