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