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