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