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