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