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