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