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