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