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