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