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