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