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