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