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