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