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