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