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