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