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