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