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