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