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