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