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