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