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