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