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