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