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