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)(19,22,25,29)(20,27,28,23)(26,32,31,30)(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)(19,25)(22,29)(26,31)(30,32)(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)(25,29)(26,30)(27,28)(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)(18,22)(20,26)(21,25)(23,30)(24,29)(27,32)(28,31)(33,34)(35,39)(36,44)(37,38)(40,45)(41,48)(42,46)(43,47)(17,20,21,28)(18,23,24,27)(19,26,25,31)(22,30,29,32)(33,36,37,45)(34,40,38,44)(35,41,42,43)(39,47,46,48)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.