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