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