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