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