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)(17,18,22,26)(19,23,27,32)(20,24,30,29)(21,25,31,28)(33,34,40,44)(35,45,47,41)(36,37,39,42)(38,43,46,48)(1,2,6,4)(3,9,11,7)(5,12,13,8)(10,14,16,15)(19,27)(21,31)(23,32)(25,28)(33,35)(34,41)(36,43)(37,38)(39,48)(40,47)(42,46)(44,45)(2,4)(7,9)(8,12)(14,15)(17,19)(18,23)(20,25)(21,29)(22,27)(24,31)(26,32)(28,30)(33,36,40,39)(34,42,44,37)(35,43,47,48)(38,41,46,45)(1,3)(2,7)(4,9)(5,10)(6,11)(8,14)(12,15)(13,16)(17,19)(18,23)(20,25)(21,29)(22,27)(24,31)(26,32)(28,30)(33,37)(34,36)(35,46)(38,47)(39,44)(40,42)(41,48)(43,45) involution — undirected(1,4,6,2)(3,9,11,7)(5,12,13,8)(10,15,16,14)(17,20)(18,24)(19,28)(21,23)(22,30)(25,27)(26,29)(31,32)(33,38,40,46)(34,43,44,48)(35,37,47,42)(36,45,39,41)(1,5)(2,8)(3,10)(4,12)(6,13)(7,14)(9,15)(11,16)(17,21)(18,25)(19,29)(20,23)(22,31)(24,27)(26,28)(30,32)(33,39,40,36)(34,37,44,42)(35,43,47,48)(38,41,46,45)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.