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