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