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