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