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