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