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