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