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