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