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