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