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