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