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