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