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