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