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