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