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