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