One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,7,12,5,10,6,11)(3,4,9,14,13,8,15,16)(17,18)(19,27,30,23)(20,31)(21,26)(22,25)(24,33)(28,37,45,43)(29,44,47,38)(32,39,46,48)(34,42)(35,40)(36,41)(1,3)(2,8,10,4)(5,13)(6,9)(7,15)(11,16,12,14)(17,19)(18,23)(20,32,33,46)(21,29)(22,30)(24,39,31,48)(25,27)(26,38)(28,34,45,35)(36,47)(37,40,43,42)(41,44)(1,4,5,8)(2,9)(3,12)(6,14,7,16)(10,15)(11,13)(17,20)(18,24,25,31)(19,28)(21,35)(22,33)(23,37,27,43)(26,42,41,40)(29,46)(30,45)(32,47)(34,36)(38,48,44,39)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.