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