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