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