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