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