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