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