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