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