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