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