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