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