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