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