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