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