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