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