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