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