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