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