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