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