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