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