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