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