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