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