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