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