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