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