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