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