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