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