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