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