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