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