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)(13,15,16,14)(18,19)(23,25)(24,26)(30,31)(33,34,38,40)(35,39,43,48)(36,41,45,46)(37,44,47,42)(2,7)(3,12)(4,10)(14,15)(17,18,22,19)(20,25,28,23)(21,24,29,26)(27,31,32,30)(33,35)(34,39)(36,44)(37,46)(38,43)(40,48)(41,47)(42,45)(2,7)(5,9)(8,11)(14,15)(21,29)(24,26)(27,32)(30,31)(34,40)(35,43)(41,46)(42,44) involution — undirected(1,3)(2,8)(4,13)(5,14)(6,12)(7,11)(9,15)(10,16)(17,19,22,18)(20,25,28,23)(21,26,29,24)(27,31,32,30)(33,36)(34,41)(35,42)(37,39)(38,45)(40,46)(43,44)(47,48)(1,4,6,10)(2,9,7,5)(3,13,12,16)(8,15,11,14)(17,20)(18,23)(19,25)(21,27)(22,28)(24,30)(26,31)(29,32)(33,37)(34,42)(35,41)(36,39)(38,47)(40,44)(43,46)(45,48)(1,5,6,9)(2,10,7,4)(3,14,12,15)(8,16,11,13)(17,21,22,29)(18,24,19,26)(20,27,28,32)(23,30,25,31)(33,35)(34,39)(36,42)(37,41)(38,43)(40,48)(44,45)(46,47)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.