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