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