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