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