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