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