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