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