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)(19,25,26,23)(20,28,29,24)(27,30,32,31)(33,34)(35,39)(36,38)(37,44)(40,46)(41,43)(42,48)(45,47)(1,3,5,4)(2,6,8,7)(9,11,14,13)(10,15,12,16)(18,22)(19,26)(20,29)(30,31)(34,36)(35,41)(40,44)(42,45)(1,3,5,4)(2,6,8,7)(9,12,14,10)(11,15,13,16)(17,18)(19,23)(20,28)(21,22)(24,29)(25,26)(27,31)(30,32)(33,35,38,41)(34,39,36,43)(37,45,46,42)(40,48,44,47)(1,2)(3,6)(4,7)(5,8)(9,11,14,13)(10,16,12,15)(17,19,21,26)(18,23,22,25)(20,27,29,32)(24,30,28,31)(33,36,38,34)(35,39,41,43)(37,44,46,40)(42,47,45,48)(1,4,5,3)(2,7,8,6)(9,13,14,11)(10,15,12,16)(17,20)(18,24)(19,27)(21,29)(22,28)(23,30)(25,31)(26,32)(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.