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