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)(11,14)(12,13)(15,16)(17,18,21,23)(19,20,24,30)(22,25,31,32)(26,29,27,28)(2,5)(6,8)(17,19)(18,20)(21,24)(22,26)(23,30)(25,29)(27,31)(28,32) involution — undirected(10,13)(14,16)(18,23)(19,26)(20,28)(22,31)(24,27)(29,30) involution — undirected(9,11,12,15)(10,14,13,16)(17,20)(18,24)(19,23)(21,30)(22,29)(25,27)(26,32)(28,31)(1,3,4,7)(2,6,5,8)(19,26)(20,29)(22,31)(24,27)(25,32)(28,30)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.