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)(18,22)(19,23)(24,27)(25,31)(26,30)(28,32)(1,3)(2,6)(4,7)(5,8)(9,10)(11,13)(12,15)(14,16)(17,18,21,22)(19,23,26,30)(20,27,29,24)(25,32,28,31)(1,4,5,2)(3,7,8,6)(9,11,13,10)(12,15,16,14)(17,19,22,30,21,26,18,23)(20,28,27,31,29,25,24,32)(3,8)(6,7)(10,11)(14,15)(17,20)(18,24)(19,25)(21,29)(22,27)(23,31)(26,28)(30,32) involution — undirected(9,12,13,16)(10,14,11,15)(20,29)(24,27)(25,28)(31,32)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.