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