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