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