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