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