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